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MERCEM300Z Intelligent mercury monitoring

MERCEM300Z Intelligent mercury monitoring. Florian Greiter, Produkt Management. MERCEM300Z – Table of contents. System components and measuring principle Test results and certification Summary. MERCEM300Z – Overall system. Gas sampling system. : Our solution – high temperature.

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MERCEM300Z Intelligent mercury monitoring

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  1. MERCEM300Z Intelligent mercury monitoring Florian Greiter, Produkt Management

  2. MERCEM300Z – Table of contents • System components and measuring principle • Test results and certification • Summary : Florian Greiter, Product Management

  3. MERCEM300Z – Overall system Gas sampling system : Our solution – high temperature Bundle of pipes Control of main valve Electrical connections Heated sample gas line Exhaust air : Florian Greiter, Product Management

  4. MERCEM300Z – Sample gas supply Ejector Sample gas line : Florian Greiter, Product Management

  5. Cell Optics MERCEM300Z – Gas flow diagram Ejector Exhaust gas Ejector air Nozzle Pressure controlfor flow control Cell 1000°C Sample probe CALSIC300 Nozzle Filter Sample gas line Evaporator : Florian Greiter, Product Management

  6. MERCEM300Z – Sample gas supply • MERCEM300Z Ejector principle • Advantages: • No moving parts • Wear-free • Flow control via pressure sensors • High gas flow results in short response time • Benefits Very low operating expenses • Measuring certainty due to control • Longest certified measuring gas line with 35m : Florian Greiter, Product Management

  7. MERCEM300Z - Design High temperature cell : Florian Greiter, Product Management

  8. MERCEM300Z – Hg - Conversion All optical measuring principles are based on the measurement of elemental mercury (Hg0) !  Conversion of mercury compounds (Hg+) to elemental mercury (Hg0) • Wet chemistry: HgCl2 + SnCl2 -> Hg0 + SnCl4 • Thermo converter: approx. 200-400°C • High temperature: from approx. 800°C SICK: ~ 1000°C : Florian Greiter, Product Management

  9. High temperature 1000 °C = HgCl2 = Hg • HgCl2 + High temperature  Hg0 + Cl2 MERCEM300Z – Hg - Conversion • High temperature conversion • Heated quartz cell (1000 °C) • Double walled Sample gas outlet Sample gas inlet : Florian Greiter, Product Management

  10. Optical unit MERCEM300Z – Design : Florian Greiter, Product Management

  11. MERCEM300Z – Measuring principle Hg How to determine the concentration? I0 I Lichtquelle Detector Light source Measuring path Reference signal Measuring signal Absorption spectrum elemental Hg 1000°C Conc ~ I0 / I Atomic absorption spectroscopy Absorption I0 I Wave length / nm : Florian Greiter, Product Management

  12. B MERCEM300Z – Measuring principleZeeman Atomabsorptionsspektroskopie Absorption spectrum Hg0 Detector Polarizer Chronological differentiation of the signals: 2µs Photo elastic modulator (50kHz) s- s+ Light waves of different polarization Light source Hg – light source : Florian Greiter, Product Management

  13. B MERCEM300Z – Measuring principle • Advantages of Zeeman - AAS • Continuous measuring method • No moving parts  No mechanical wear  Long-term stability (Maintenance cycle of light source: ≥ 1 year) • Automatic drift correction for • Light source modifications • Contamination of optical surfaces • Identical influence of cross sensitivity components on measuring and reference signal  Best possible cross sensitivity correction s- s+ Hg - Lichtquelle : Florian Greiter, Product Management

  14. measuring wave lengths MERCEM300Z – Measuring principle • Influence of cross sensitivities; e.g. SO2 : Florian Greiter, Product Management

  15. MERCEM300Z – Measuring principle • Influence of cross sensitivities; e.g. SO2 measuring wave lengths : Florian Greiter, Product Management

  16. measuring wave lengths MERCEM300Z – Measuring principle • Influence of cross sensitivities; e.g. SO2 • Wave length of measuring and reference signal are almost identical  The interference caused by cross sensitivity components stays constant within the wave length interval!  Thus the cross sensitivity is immediately compensated. : Florian Greiter, Product Management

  17. MERCEM300Z – Measuring principle • Influence of cross sensitivities (results from type approval) Component Concentration Cross sensitivities on Hg SO2 1000 mg/m³ - 0.065 µg/m³ H2O 30 Vol% 0.060 µg/m³ HCl 200 mg/m³ no CS NO 300 mg/m³ no CS NO2 30 mg/m³ 0.090 µg/m³ O2 21 Vol-% - 0.120 µg/m³ All other tested cross sensitivities are below ± 0.05 µg/m³ = <0.5% certification range : Florian Greiter, Product Management

  18. MERCEM300Z – Measuring principle • MERCEM300Z measuring principle: Zeemann AAS • Advantages: • Continuous measurement • No moving parts • Automatic drift correction • Best possible cross sensitivity correction • Benefits • Easy design – Easy access, no black box  Very low operating expenses : Florian Greiter, Product Management

  19. MERCEM300Z – Patented extractive direct measurement • MERCEM300Z: Patented extractive direct measurement • Measurement within heated cell of about 1.000 °C • Advantages • No Hg – recombination • No memory effects • Continuous monitoring of total Hg • Benefits • Reliable monitoring of total Hg independent from plant conditions • Measuring certainty : Florian Greiter, Product Management

  20. MERCEM300Z – Internal adjustment Optical unit : Florian Greiter, Product Management

  21. MERCEM300Z – Internal adjustment • MERCEM300Z Integrated Adjustment Cell • Generation of a defined long-term stable Hg - signal with adjustment cell (patent pending) • Advantages • No test gas required • Automatic drift control • Full adjustment of optical bench • Benefits • Measuring certainty • Saves operational expenses due to drift control without test gas : Florian Greiter, Product Management

  22. MERCEM300Z – Test gas generator Vaporizer Sample gas line CALSIC300 : Florian Greiter, Product Management

  23. MERCEM300Z – Test gas generator • CALSIC300 (option) • Vaporization of liquid HgCl2-solution of known concentration • Realization as automated span gas function • Three predefined span concentrations possible • Automatic injection before sampling filter unit : Florian Greiter, Product Management

  24. MERCEM300Z – CALSIC300 • MERCEM300Z – CALSIC300 • Advantages • Adjustment of overall system • Fully automated QAL3 function included • Check of conversion rate included • Benefits • Measuring certainty due to check of overall system • Saves operational costs: • No additional costs for test equipment, e.g. test gas, Hovacal …. • No additional costs for technician : Florian Greiter, Product Management

  25. High Middle Low MERCEM300Z – Adjustment during field test Adjustment cell : Florian Greiter, Product Management

  26. MERCEM300Z – Cabinet • MERCEM300Z System housing • Advantages • Standardized setup • Easy to maintain • Full air conditioning (-20 to +50°C) • Protection grade IP55 • Dimensions: H W D 1800mm x 1050mm x 745mm • Weight: approx. 250 kg • Benefits • Convenient and fast access for easy service • Stable measuring results in harsh and/or difficult ambient conditions : Florian Greiter, Product Management

  27. MERCEM300Z - Design High temperature cell Ejector Optical unit Electronics CALSIC300 : Florian Greiter, Product Management

  28. MERCEM300Z – Table of contents • System components and measuring principle • Test results and certification • Summary : Florian Greiter, Product Management

  29. MERCEM300Z – Certification : Florian Greiter, Product Management

  30. MERCEM300Z – Certification : Florian Greiter, Product Management

  31. MERCEM300Z – Type approval • Type approval according to EN15267 • Approved measuring ranges: 0-10/45/100/1000 µg/m³ • Lowest approved measuring range for mercury analyzer: 0 – 10 µg/m³ • Highest approved measuring range for mercury analyzer: 0 – 1000 µg/m³ • Unique maintenance interval: 6 months! • Unique type approved system which is certified to monitor mercury at all relevant plant types (waste incineration, power plants and cement plants) • Successful implementation of system at 3 plants where no other mercury monitoring system could be calibrated • Cement plant (Germany) • Lime plant (Rheinkalk) Germany • Sinter metal plant : Florian Greiter, Product Management

  32. MERCEM300Z – Type approval : Florian Greiter, Product Management

  33. Raw gas monitoring: waste incineration plant • Raw gas monitoring at a waste incineration plant • Hg- Concentrations between 500 µg – 4000 µg • No change in system setup • Uninterrupted operation since 4 months Adjustment with internal CALSIC300 : Florian Greiter, Product Management

  34. MERCEM300Z – Table of contents • System components and measuring principle • Test results and certification • Summary : Florian Greiter, Product Management

  35. MERCEM300Z – Summary MERCEM300Z : Florian Greiter, Product Management

  36. MERCEM300Z – Summary MERCEM300Z : Florian Greiter, Product Management

  37. MERCEM300Z – Questions ? MERCEM300Z Innovative mercury monitoring : Florian Greiter, Product Management

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